Toyota Camry (XV70): Front Radar Sensor Optical Axis Misalignment Malfunction (C1A1100)
DESCRIPTION
The millimeter wave radar sensor assembly performs self-diagnosis to check for misalignment of its beam axis. If misalignment is detected, the millimeter wave radar sensor assembly stores DTC C1A1100.
|
DTC No. | Detection Item |
DTC Detection Condition | Trouble Area |
|---|---|---|---|
|
C1A1100 | Front Radar Sensor Optical Axis Misalignment Malfunction |
When the ignition switch is ON, the millimeter wave radar sensor assembly detects beam axis misalignment |
|
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the millimeter wave radar sensor assembly, always replace it with a new one. If a millimeter wave radar sensor assembly which was installed to another vehicle is used, the information stored in the millimeter wave radar sensor assembly will not match the information from the vehicle and a DTC may be stored.
- When the millimeter wave radar sensor assembly has been replaced with a new one, it is necessary to perform millimeter wave radar sensor assembly beam axis alignment and to clear the vehicle control history. Before performing the Driving Adjustment, make sure to read Before Starting Driving Adjustment.
HINT:
Beam axis alignment of the millimeter wave radar sensor assembly can be performed using either Triangle Target, Flat Surface Target or Driving Adjustment.
Triangle Target: Click here
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Flat Surface Target: Click here
Driving Adjustment: Click here
PROCEDURE
|
1. | ADJUST MILLIMETER WAVE RADAR SENSOR ASSEMBLY |
(a) Perform millimeter wave radar sensor assembly beam axis adjustment.
HINT:
Beam axis alignment of the millimeter wave radar sensor assembly can be performed using either Triangle Target, Flat Surface Target or Driving Adjustment.
Triangle Target: Click here
Flat Surface Target: Click here
Driving Adjustment: Click here
|
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| 2. |
CHECK FOR DTCs |
(a) Clear the DTCs.
Body Electrical > Front Radar Sensor > Clear DTCs(b) Make sure that the DTC detection conditions are met.
HINT:
If the detection conditions are not met, the system cannot detect the malfunction.
(c) Check for DTCs.
Body Electrical > Front Radar Sensor > Trouble Codes|
Result | Proceed to |
|---|---|
|
DTC C1A1100 is not output |
A |
| DTC C1A1100 is output |
B |
| A |
.gif) | END |
| B |
| REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY |
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SEE MORE:
Removal
REMOVAL PROCEDURE 1. REMOVE FRONT WHEEL RH
Click here 2. REMOVE FRONT FENDER APRON SEAL RH
Click here
3. REMOVE V-BANK COVER SUB-ASSEMBLY Click here
4. REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Exhaust Side of Bank 1)
Click here 5. SET NO. 1 CYLINDER
Road Test
ROAD TEST
HINT:
The dynamic radar cruise control system has 2 cruise control modes: constant speed control mode and vehicle-to-vehicle distance control mode.
Vehicle-to-vehicle distance control mode is selected by default when the dynamic radar cruise control system is turned on using the
